🕒 No date to pick · Code valid 1 year · Play whenever you want
Get my code
Uncover the hidden truth behind Ambiorix's defeat: decipher coded messages left by the Eburone king before Caesar's final siege, and expose the conspiracy that sealed his tribe's fate.
📱 1 to 10 phones · 1 team per phone · Independent codes
54 BCE
You are Atuatuca, Ambiorix's loyal lieutenant, in 54 BC Tongeren, tasked with deciphering Roman legion movements and rallying Eburone tribes for the uprising
Immerse yourself in the heart of Flanders, in Tongeren, following the footsteps of Ambiorix, the Eburone chief who defied Julius Caesar in 54 BC.
Your quest for Ambiorix's Oath begins in front of the Ambiorix Statue in Vrijthof square, the historic heart of Tongeren. Erected in 1881 by Jules Lagae, this imposing statue commemorates the Eburone chief Ambiorix who led the revolt against Julius Caesar's Roman legions between 54 and 53 BC, an event documented in Bellum Gallicum. It is here, on the cobblestones of Tongeren Flanders Belgium, that you will decipher the first clues left by the Eburone king, immersing yourself in the ancient drama that shaped the destiny of Gaul.
Continue towards the Gallo-Roman Museum of Tongeren, located at Kerkstraat 15, 400 meters from Vrijthof. Founded in 1958, this museum houses the most important collection of Eburone and Roman artifacts in Belgium, including coins of Ambiorix, pottery, weapons, and fibulae dated from the 1st century BC and 1st century AD. The exhibited objects are silent witnesses to Roman domination and the culture of the peoples who lived along the Via Romana Belgium, offering you valuable insight into the resources Ambiorix might have used for his rebellion.
Your journey then takes you to the Roman rampart remains, visible on Jeker street and Minderbroedersstraat, 600 meters from Vrijthof. These wall sections, built with Roman limestone and mortar after the post-Ambiorix pacification around 30 AD, still reach 3-4 meters in height. They represent triumphant Roman power, but also the strategic challenges Ambiorix and his troops had to face. Not far away, the Moerenpoort, the only fortified gate from the 13th century, incorporates reused Roman limestone blocks, illustrating the continuity of Tongeren's medieval heritage on ancient foundations.
The Basilica of Our Lady of Tongeren, whose construction began around 1240, is a Belgian historical monument whose 67-meter Gothic tower rises above the city. Built on the foundations of a Roman temple dedicated to Minerva, it contains Roman lapidary remains integrated into its walls. This site embodies the superposition of eras, where ancient sacredness gives way to Christian sacredness, but where the stone preserves the memory of past cults. It is a key point for understanding the evolution of Tongeren after Ambiorix's period.
Finally, your exploration will lead you along Grébémont Square, which preserves the alignment of the ancient Via Romana connecting Cologne to Bavay, and towards the Jeker river, a key geographical feature. This river, mentioned in ancient texts, was a territorial boundary of the Eburones and a major defensive asset for Ambiorix between 54 and 53 BC. The medieval historic center of Tongeren, with its cobbled streets from the 12th-14th centuries preserving the Roman urban layout, will show you how history was built layer by layer. This Flanders themed circuit allows you to understand the history of Tongeren, from the Roman remains of Flanders to the weekly antique markets that testify to the commercial vitality of the sector since Antiquity, confirming the importance of this heritage.
Explore the city on foot solving puzzles based on real historical facts. No locked room — the city is your playground.
No app to download. Play directly from your browser. Guided step by step, at your own pace.
One purchase per phone is enough. Play with family, friends or as a couple — everyone participates.
Point your phone at the façade: a historical character appears and speaks to you in your language. Golden letters magically write themselves on the wall to reveal the puzzle answer.
Stuck? Progressive personalised hints. The character repeats the puzzle on demand — at your own pace.
French, English, German, Spanish, Italian + 27 other languages auto-translated by AI.
The game downloads to your phone on start. Once the "✓ Downloaded" indicator appears, everything works without data — narration, AR, GPS and puzzles. Perfect abroad without a data plan.
Places tied to your adventure — optional entries, totally up to you · per person
5-10 curated sites across the territory
The gameplay: AR, camera, hidden clues
At each stop, open your phone camera: an augmented reality character appears on the façade and speaks your language. Hunt the clue — it materializes as golden letters on the real wall or floats in front of you. When you find it, the phone vibrates, an AR chest opens and reveals your answer fragment. 8 stops, 8 clues to find with the camera, 1 final code.
The stops on your route are a surprise. You'll discover them one by one, guided by your phone, starting from the meeting point.
One phone = one team. Pick the number at checkout (1 to 10).
Solo, or a group sharing the screen. One team, one code.
Family, couple, or 2-3 teams competing. Each phone has its own code and its own score.
Friends, bachelor/bachelorette, small office outing — each their own code, each plays at their own pace. Tiered pricing then €6 flat per phone from the 6th.
Ready to live this adventure?
Get my code · 14,90€No calendar booking. Code sent immediately by email.
🔒 Secure payment · Code in 5 min · Free cancellation
Dive into the tumultuous history of the Eburones and their chieftain Ambiorix against the Roman invaders.
Unravel an ancient system of signs and landmarks left by Ambiorix to protect his people from Caesar's fury.
Explore the remains and foundations of what was a strategic Roman center, once the land of the proud Eburones.
Freedom never truly dies, it hides and awaits its time.
Ambiorix's Oath
OddballTrip combines gamified play, augmented reality and AI. All our competitors deliver 1 or 2 of these angles. We deliver all 5.
A golden chest floats in front of the monument. Tap → opening animation → reveals a secret message.
Point your phone at the façade: a knight, witch, monk, sailor, detective or ghost appears full-screen and speaks to you in your language with their dedicated ElevenLabs voice (each character has their own unique voice) — your living guide.
At the puzzle climax, golden letters magically write themselves on the real wall — that's the puzzle answer. An unforgettable visual effect.
Every puzzle available as text AND voice-over: read at your own pace or listen eyes-free while walking. Great in groups and for accessibility.
A mini-radar shows the target even behind you, and the phone vibrates when you aim in the right direction.
Every puzzle weaves in real historical facts (architecture, era, anecdotes). You learn by playing — like a gamified audioguide.
3 levels of AI-generated help: vibe → where to look → answer format. You're never stuck.
At the end of the game, capture a selfie with OddballTrip banner + mascot, shareable on Instagram, TikTok.
PWA technology: open the link, it plays in your browser. Same quality as an app, no App Store hassle.
Same spirit: search, deduce, find. But here the "treasure" is a full story to piece together in eight stops. Each stop gives you a fragment of the final code. Eight fragments later, you've cracked it.
Eight stops total. At each stop you find a camera clue, solve the puzzle, collect a fragment of the final code. With all eight, you've got the answer.
Great two-person format. Narration is dramatic without overdoing it, puzzles are designed to spark conversation. Ideal for new relationships or anniversaries — you discover the city and coordinate on puzzles simultaneously.
Morning between 10 and 11, or early afternoon around 2 PM, is ideal. You still have daylight ahead, Tongeren Historic Center is less crowded, and the light is better for camera clues.
Soyez le premier à partager votre expérience.
Did you play le serment d ambiorix? Check the email you received after your game to leave a verified review.
Immerse yourself in the heart of Flanders, in Tongeren, following the footsteps of Ambiorix, the Eburone chief who defied Julius Caesar in 54 BC.
1 purchase = 1 phone. Play several on the same device.
No calendar booking. Code sent immediately by email.
🔒Secure payment · Code in 5 min · Free cancellation
🪙+24 TripCoins granted with your booking
More destinations, tours & urban treasure hunts across the country
The Ardent City, between the Meuse and its hills
Walloon capital, between Meuse and Sambre
Heart of Europe, where history meets comic art
Medieval gem with a thousand canals
The Venice of the North, medieval jewel of Flanders
Coupe-file disponibles pour les sites payants de votre parcours. Gagnez du temps, vivez l'aventure pleinement.
12€. Explorez la collection d'artefacts éburons et romains de Belgique, incluant des monnaies d'Ambiorix et des poteries antiques.
Gratuit. Admirez l'architecture gothique et les fondations d'un temple romain dédié à Minerve, avec des vestiges lapidaires intégrés dans les murs.
Gratuit (dimanche matin). Flânez dans le quartier médiéval et découvrez ce marché hebdomadaire, le plus ancien et le plus grand de Belgique, depuis 1945.
Gratuit. Suivez le cours d'eau historique qui traversait Tongeren à l'époque romaine, mentionné comme limite territoriale des Éburons.
💡 Réservation optionnelle — vous pouvez aussi acheter sur place. Tous les liens ouvrent dans une nouvelle fenêtre, votre visite OddballTrip reste préservée.